Power-transmitting mechanism.



No. 814,268. PATENTEDMAR. 6,1906. I

A. T; BROWN.

POWER TRANSMITTING MECHANISM.

nrmouron FILED 1120.7,1905.

Mums-sins? 1.

ATTORNEYS" I A. T. BROWN.

POWER TRANSMITTING MECHANISM.

APPLICATION rmm Jam-1,1905,

- I 2 sums-sum 2.

wmuassis: mvEmon QMJ /J I ATTORNEYS PATBNTED MAR 6, 1906.

ALEXANDER T. BROWN, OF

SYRACUSE,

NEW YORK, ASSIGNOR TO. THE

BROWN-LIFE GEAR COMPANY, OF SYRACUSE, NEW YORK, A COPART- NERSHIP.

Specification of Letters Patent. Application am Deoenrbor 7, 1905,Serial No. 290,686.

POWER-TRANSMITTING MECHANISM.

To all whom it may concern:

Be it known that I, ALEXANDER T. BROWN, of Syracuse, in the county ofOnondaga and State of New York, have invented a certain new and usefulPower-Transmitting Mechanism, of which the following is a specification.

This invention relates ,to power-transmitting 'mechanism particularly aplicable for use in-self-propelled vehicles, and has for its object theproduction of means for the desired purpose which is es eciallysimple'in construction and highly efficient and durable in use; and tothis end 1t consists in the novel combinations and constructionshereinafter set forth, and pointed out in the claims.

In describing this invention reference is had to the accompanyingdrawings, in which like characters designate corresponding parts in boththe views.- I

Figure 1 is a rear elevation, part1 in section, of a portion of aself-propelle vehicle including one embodiment of my invention. Fig. 2is an enlarged sectional view, partly in elevation, on lineA A, Fi

1. The illustrated exempfification of this invention includes driven anddriving members and equalizing and transmitting gears.

The driven members 1 2 comprise an axle, are arran ed substantially endto end with the axis of oneinadvance of and substantiall parallel to theaxis of the other, and are pre erably-i'nclined relatively to eachotherlengthe wise of their axes from a horizontal plane. The outer endsof the driven -members 1 2 are equipped with ground-Wheels 3 4, andtheir inner ends are provided with e ual diameter suitably securedthereto. The driving member 7 extends beyond opposite sides of the axesof the driven members 1 2 at a right angle to said driven members, isfixed from movementlaterally relatively to the driven members, and ismterposed between the gears 5 6. Said driving member preferably consistsof a shaft having one end squared or otherwise formed for receiving acoupling-section 8, adapted to be securedto any suitable source ofpower, as an engineshaft. (Not shown.)

In the illustrated embodiment of this invention the driving member 7supports equalizing-gears 9 I0 11 12 13 '14, the e ualizing-gears 9being mounted on latera y-projecting trunnions 15 16 on gears 5 6 of andtransmitting-gears the driving member and arranged with their axesrevoluble in a lane substantially parallel to and midway etween the axesof the driven members 1 2 and the gears 11 12 being respectively fixedto the gears 13 14 and revoluble on the driving member 7 about the axisthereof. One side of the transmittinggear 13 meshes at one side of theaxes of the driven members 1 2 and at one side of the axis of thedriving member 7 with the gear 5 on the driven member 1, and said gear13 is disengaged from the gear 6 on the driven member 2, and thetransmitting gear 14 meshes at the opposite side of the axes of thedriven members 1 2 andthe opposite side of the axis of the drivingmember 7 with the gear 6-and is disengaged from said gear 5. :Thedescribed engagement of the gears 13' 14 with gears 5 6 of equaldiameter. is effected by arranging the driven members 1 .2 with theiraxes one in advance of the other. To ,those skilled in the art it willbe understood 1 that if the driving member 7 revolves in a re- 'versedirection to that indicated by the arrow, Fig. 2, it will be necessaryto arrange the 'ven member 1 with its axis at the rear of the axis ofthe member 2 in order that the vehicle may move forwardly. v

Equallzing and transmitting gears constructed and arranged as describedform a particularl compact, sim 1e, efficient, strong, and durabieconnection etweenthe driven and driving members, and such connectionconsists of a minimum number of parts and when transmitting motion fromthe driving to the driven members equalizes the strain on op osite sidesof the axes of said members and a so permits of the necessarydifferential movement of the driven members.

In the illustrated embodiment of my invention the driven and drivingmembers 1 2 7 are supported by a casing 17, comprising a central partand tubular shells or extensions. 18 19. The central part of the casing17 is k provided with a detachable cap 20 and is ormed with 0p osingside openings 21 22, through which t e driven members 1 2. 'ro

* *ject, these openings being arranged with t eir Patented MarehB, 1906.

axes one in advance of the other and being .referably inclinedrelatively to eachother lengthwise of their axes from a horizontal planeand having their axes substantially. co-

incident with the axes of the driven members 1 2. Said tubularshells orextensions 18 19 form continuations of the parts of the casing providedwith the openings 21 22 and encircle and support the driven members 1 2,suitable antifriction-bearings for supporting such driven members beingusually provided in the inner and outer ends of these extensions.

I The central part of the casing 17 isalso provided with opposingextensions 23 24, arranged with their axes at a right angle to the axesof the openings 21 22, these extensions having their outer ends providedwith detachable caps, one being formed with a-central opening, throughwhich the driving member 7 projects.

Suitable antifriction-bearings 26, fixed from movement laterallyrelatively to the driven members, are provided on the driving member 7and arranged in the tubular extensions 23 24 of the casing 17. The innersections of these be'aringsare engaged with the ends of the gears 13 '14and are also engaged by any suitable means, as the coupling-section 8and a nut 27, revoluble with the driving member 7 and held from movementlengthwise thereof, and consequently said inner sections resistandequalize the end strain on the gears 13 14. The coupling-section 8 ishere shown as enga ed by a nut 28 on the driving member 7. the'bearings25 26 form no part of my present invention, further description thereofis deemed unnecesry v The described casing is simple in construction andforms a particularly efficient means for supportin and incasing thedriven and driving mem ers and the equalizing and transmittingmechanism; but 1t is apparent that other means may be used for suporting and inclosin these parts, and thereibre I do not restrict tinvention to such casing.

.WhatI claim is 1. In a vehicle, revoluble driven gears of substantiallyequal diameter arranged substantially end to end, with the axis of onein advance of, and substantially parallel to, the axis of the other, andtransmitting gears arranged on opposite sides of the axes of the drivengears, one of the transmitting-gears being in mesh with one of thedriven gears and out of mesh with the other driven gear, and the othertransmitting-gear being in mesh with said other driven gear and outofmesh with the opposing driven gear, substantially as and for thepurpose described. 2. In a vehicle, revoluble driven gears ofsubstantially equal stantially end to end, with the axis of one inadvance of, and substantially parallel to, the axis of the other,transmitting-gears arranged on opposite sides of the axes of the drivengears, one of the transmitting-gears being in mesh with one of thedriven gears and out of mesh with the other driven gear, and the othertransmitting-gear being in mesh with posing openings,

diameter arranged subsaid other driven gear and out of mesh with theopposing driven gear, and equalizinggears connecting thetransmitting-gears, one of the equalizing-gears being arranged with itsaxis revoluble in a plane substantially parallel to, and midway between,the axes o. the

driven gears, substantially as and for the PUT".

pose specified.

3. In a vehicle, an axle comprising a pair of revoluble shafts arranedsubstantially end to end, with the axis 0% one in advance of, andsubstantially parallel to, the axis of the other, ground-wheels carriedby the outer ends of the shafts, diameter provide on the inner ends ofthe shafts, a driving member arranged with its axis at an angle to saidshafts, a gear revoluble with the driving member and being in mesh withthe gear on one of out of mesh with the gear on the other shaft, asecond gear revoluble with the driving member and being in mesh with thegear-on said other shaft and out of mesh with the gear meshing with thefirst-mentioned gear revoluble with the drivin member, andequalizing-gears carried by t e driving member and connected. to saidears revoluble with the driving member, su stantially as and for thepurpose set forth.

4. In a vehicle, a casing provided with hpone bein arranged with itsaxis in advance of, and su stantially parallel to, the axis of theother, ranged substantiallymidway between the opposing openings at'anangle thereto, driven members journaled in the opposing openings, andarran ed with the axis of one 1n advance of, and su stantially parallelto, the axis of the other, a driving member journaled in the third 0enin and arran ed with its axis at an ang e to t e axes of tl ie drivenmembers, and power-transmitting means within the casing connecting thedriven and driving members, substantially as and for the purposedescribed.

5. In a vehicle, a casing provided with opposing. openings, one beinarranged with its axis in advance of, and su stantially parallel to, theaxis of the other, a third opening arranged substantially midway betweenthe op osing openings at an angle thereto, an .a e comprising a pair ofsha the opposing openings, and arrange with the axis of one in advanceof, and substantially parallel to, the axis of the other, ground-'wheels carried by the outer ends of the shafts, gears of substantiallyequal diameter provided within the casing on the inner ends of ears ofsubstantially equal;

the shafts, and

a third opening arts journaled in the shafts, a driving member journaledin the third opening and arranged with its axis at an angle to thedriving'member'and being in'mesh with the gear on one of the shafts, andout of mesh with the gear on the other shaft, a second axes of thedriven members, a gear within the casing revoluble with the gear withinthe casing revoluble with the driving member and being in mesh with thegear on said other shaft and out of mesh with the gear meshing Wit h thefirst-mentioned 5 gear revoluble with the driving member, andequalizingears within the casing carried by the drivin gears revo ublewith member and connected to said the driving members,

one of the equalizing-gears being arranged 10 with its axis revolublti'ally parallel to, and

e in a plane substanmi'dway between, the

